a:9:{i:0;s:5:"ev_id";i:1;s:7:"user_id";i:2;s:9:"worker_id";i:3;s:8:"order_id";i:4;s:5:"score";i:5;s:7:"content";i:6;s:11:"create_time";s:3:"_pk";s:5:"ev_id";s:5:"_type";a:7:{s:5:"ev_id";s:16:"int(11) unsigned";s:7:"user_id";s:16:"int(10) unsigned";s:9:"worker_id";s:16:"int(10) unsigned";s:8:"order_id";s:16:"int(11) unsigned";s:5:"score";s:19:"float(3,1) unsigned";s:7:"content";s:12:"varchar(255)";s:11:"create_time";s:16:"int(10) unsigned";}}